Hurdle washer



Patented May za, 1935 BUBBLE WASHER wilhehneimannandlobannllagen Boch Germany Application and thereby offering the largest surface of the liquid.

January 20, 1934, Scrlal No. 707,456 Germany September 19, 1932 3 Claims. (Ul. 261-111) The invention relates to hurdle washers intended for the treatment o! gaseous agents risby means of a washing liquid therein, in which the' inner washer is `fitted with hurdles caustrickling washing liquid possi-ble active The invention has for its object a new and ef- 10- ilcacious construction of the hurdle nlling of washers ot this class, the hurdles according to the invention consisting o! vertically arranged members of perforated sheet metal which are inclined in themselves with respect to the perpencorrugated sheet metal layers extendingat an suited for the dicular and to this end may have a buckled or shape. These vertically arranged members further are arranged in angle to oneanother, for

been found that purpose sheet metal in which first slots are punched or cut in staggered position to one another. whereupon the sheet normal to that metal is expanded in a direction o! the slots. By the expansion of thesheetmetalareformedsharpedgesonthe apertures formed by the expansion or the slots, on

` which edges thetricklingliquidagainandagain is subdivided into individual drops,v whereby an extremely enlarged active obtained.

surface of the liquid is In order that the invention may be clearly understood and readily ferred embodiment oi' way of example panies and forms this drawing Figure 1 carried into etfect.- a prethe same is illustrated by in the drawing which accompart of this speciilcation. In

is a vertical section oi the upper portion of a hurdle washer built up in accordance with the invention, and

Figure 2 is a perspective view of two superposed hurdle illling made from expanded denotes the cylinhurdle washer in which on bars b rest in rows and in strips of buckled expanded at right angles to the adjacent layers d. Intermediate wooden bars the intermediate spaces obtained by these bars causing compensation o! the gas pressure within the washer.

The washing liquid is distributed by means of a central supply f tted with baule plates a, a or other suitable distributing means such as roses or the like. The gaseous agent treated in the washer escapes over a partition h through the 10 socket i.

v"We claimt l. A vertical hurdle washer comprising a. casing and hurdles therein consisting of superposed layers o i strips of expanded metal with the strips 1| in each layer arranged on edge and extending at an angle to the strips in an adjacent layer and inclined to the vertical, so that each layer forms a pervious mass continuously retarding and subdividing water ilowing downwardly through the zo mass and bringing said water into intimate Icontact with gas passing upwardly through the mass.

2. A vertical hurdle washer comprising a casing and hurdles therein consisting oi superposed lay-` ers oi.' strips of expanded metal with the strips in g5 each layer arranged on edge and extending at an angle to-the strips in an adjacent layer and each bent to provide portions differently inclined to the vertical, so that each layer forms a pervious mass continuously retarding and subdividing wa- 30 ter owing downwardly through the mass and bringing said water into intimate contact with gas passing upwardly through the mass. l 3. A vertical hurdle washer comprising a casing layers of strips oi expanded metal with the strips in each layer extending at an angle to the strips in an adjacent layer and corrugated so to provide portions at diiierent` levels which are diiferently inclined to the vertical. so that each lay- 40 and hurdles therein consisting of Superpod 35 

